Sometimes I come up with an idea that I want to patent but I am so busy that I just blog it instead. Hopefully this will make it into the internet archive and folks can send me money when they want to license my invention.
The idea is pretty simple and shown in this picture:

The idea is to make a simple cord – on one end is a female MagSafe adaptor and on the other end is a male MagSafe adaptor.
It allows old power supplies to be used with new computers – it keeps folks from buying too many double power supplies – such as for home and work. One power supply can be used for many computers.